Improvement in ejectors



J. SHERRIFF.

Ejecturs.

Patented March3,1874.

WI TJVESSES M11/ M By NITED l STATES PATENT OFFICE.

WILLIAM J. SHERRIFF, OF PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN EJECTORS.

Specili yation forming part of Letters Patent No. 148,25l, dated March3, 1874; application filed October 11, 1873.

To all whom it may concern:

' Be it known that I, WILLIAM J. SHERRIFE, of Pittsburg, in the countyof Allegheny and State of Pennsylvania, have invented a new and ImprovedEjector; and I do hereby declare the following to be a full and exactdescription of the same, reference being had to the accompanyingdrawings forming part of this specification, in which-- Figure l is aperspective view of my invention. Fig. 2, a.vertical section of thesame. Fig. 3 is a section through line x x, Fig. 2.

Similar letters of reference in the accompanying drawings denote thesame parts.

This invention relates to that class of pumps known as ejectors,77wherein the elevation of water or other fluid is eected by thecondensation of a steam-jet; and it consists, iirst, in the method ofconstructing the apparatus with a semi-diaphragm all made in one piece;second, in the internal arrangement of the parts, whereby the enteringcurrent of water is conducted upon the steam-jet nozzle more directlythan heretofore, a partial support ador-ded to the ejected column, and aback flow into the inlet-pipe obstructed.

That others may fully understand my improvement, I will now particularlydescribe it.

I make the shell (l substantially in the form of a pear, to the upper orneck portion, D, of which the outlet or ejection pipe is coupled. At thelarger or bottom end of the shell D there is a projection or stud, B, toform the coupling for the steam-pipe, said projection being perforatedlongitudinally to permit the passage of the steam. At the side near thebottom end of the case there is a lateral openin g, F, for the admissionof the water, a suitable pipe being coupled thereto for that purpose.rIhe projection B has an internal prolongation, b, extending axiallyinto the cavity of the shell C to a point opposite the upper edge of theinlet F, or thereabout, and said internal projection b is joined at itsupper end to the shell O by a curved partition or semidiaphragm, A,which veils the inlet F and causes the entering water to pass to theopposite side of the shell C before it ascends toI ward the outlet. Thepartition A curves upward toward its edge, and extends to a pointslightly more elevated than the nozzle or up per end of b, so that thewater-current is directed to and caused to flow over upon thesteam-nozzle, whereby a more rapid condensation of the steam iseffected.

It will be observed that the partition A in I addition to its action indirecting the flow of the water, as specied, also serves as an abutmentor partial support for the ejected column of water above it, andpresents a resistance to the back dow into the inlet-pipe.

As above set forth, these several parts are cast in a single piece, andthe labor of fitting is confined to the couplings for the three pipesnamed and the Teaming of the nozzle b and neck D.

The'neck D may be strengthened by external ribs r if', as shown.

I am aware that other forms of ejectors have heretofore been made in onepiece, and I, therefore, do not claim, broadly, the construction ot' anejector made in one piece; but desire to cover only my particular formof ejector when made in one piece.

I claim as my inventionl.. An ejector constructed with an internalsteam-nozzle joined at or near its upper end to the outer case of theejector by a semi-diaphragm or partial partition, which conducts thewater upon the steam-nozzle more directly, and also affords a partialsupport to the column ot water above it, and thereby resists the backiow of the water, substantially as described.

2. rlhe ejector constructed with the semidiaphragm, as described, whenmade in one piece, as set forth.

3. In combination with the nozzle b, the semi-diaphra gm A, curvedupward at its edge, substantially as and for the purpose set forth.

WILLIAM J. SHERRIFF. Witnesses:

MELVILLE CHURCH,

NATHAN K. ELLsWoRTH.

